adding example 6.1 by declaring a function to count zeroes in an array
modification of function countZeroes to behave a more functional programe
declaring function processParagraph to process the paragraphs
adding a link to link between javascript.html and ch6.js file
calling a function processParagraph to process the paragraphs
adding example 6.3 to modify a solution for example 6.2
more modification of examples 6.2 and 6.3
adding a function to format the image,links and tags from html document
creating a function to escapes HTML format
creating a function that render html document more efficiently than using a fuction that escapes html
calling a function that renders HTML
removing unnecessary brackets
modifying a function to render html
creating a function that uses other functions to render the HTML more precisely